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3 Sheets-Sheet 1.

B. H. AYLW ORTH. MANIKIN FOR ILLUSTRATING PRACTICE (JP OBSTETRICS.-

No. 88,432. Patented Mar. 30, 1869.

Y 3 Sheets-Sheet 2.

B. H. AYLWORTH. MANIKIN .FOR ILLUSTRATING PRACTICE OF OBSTETRICS.

3 SheetS- -Sheet 3.

B. H. A YLWORTH MANIKIN FOR ILLUSTRATING PRACTICE OF OBSTETRICS.

,432. Patented Mar. 30, 1869,

abdomen.

MW M

B. H'. AYnWofR' r or G'XFORI'D, NEW YORK.

LettersPwtent No. 88,432 dated March 30,1869.

M ra Farms, 81c, ron maps-manna was racemes or ons'rnrarca Schedule referred to in these Letter! Patent and making part of the same.

To all whom it may 0011mm: v Be it known that I,B. H. AYLWORTH, of Oxford, in the county Chenango, andState of NewuYork, have hivented anew and useful Manikin, with Artifie cial Fcetns, for Illustrating the Practice of Obstetrics,- of which the following is a full, clear, and exact descriptiom-jreference beinglhad to the accompanying drawing, forming partoflthis specification, and in -whicl1' L Figure-1 represents a view of a manikin, in part, .gshowing the portion of a skeleton, in illustrationlof ftho human pelvis, with certain attachments or perftdining parte/ Figure 2, an outside view of a portion of one of the innominentmin part; of the manikin,"with a mechanical devi'ce secured thereto,-to aid inshowingthe natural contractile force of the uterus;

: Figure 3is a. front vie'w'of the portion of the inanikinused to illustrate the practice of obstetn'cs, accoid iiigto this, my invention, showing the skeleton covered and complete. i p t Figure 4 is an'ir'regula'l', vertical section of the same, taken'through the uterus, with an artificial foetus therein. V x

- Figure" 5. represents a back view, on an enlarged scale, of said fietus', as constructed to illustrate my inv'ention, and

Eig'ure'fi, aside. view of the same.

Figure 7' is a top View of the skull ri -e ualities sutures.

The object of this; my invention, is to illustrate, by means ofa manikin,of a novel and operative character,

' or construction, with-artificial foetus combined, the science and practice of obstetrics, for the instruction of medical students and-others V This manikin comprises that portion of the human female which is immediately connected with child-hear mg, and certain adjacent parts, or organs; also a foetus .within the uterus, and made capable of extraction, or

or bones of the female pelvis, connected, in any suitable riranner, to represent natural'articulzrtlon.

Bis the anterior surfaceof the posterior wall of the C 0, portions of the femurs.

D D, also the internalorgans, such 'as the vagina/E, the uterus F, and its appendages, likewise the placenta and choiion J, the bladder G, the rectum H, and anus 1, are'all made of elastic India rubber, and located in 'their'proper relative positions. c l

The placenta and chorion J, into which'the artificial foetus 1C is placed, may be inflated, by means of a tube,

Similar letters of ,,rcfereu'ce indicate corresponding parts in the several figures.

The external organs of generation, such as the labiaa, provided with a suitable stop-cock, such inflation rep resenting the'liqnor-nmnh, Y --Q.ho'= uterus'F may then be closed, by lacing b, or otherwise, and the. i'cetus manipulated, as in natural labor. l After this, the chorion J may be openechand the artilicial frntus caused to descend, which is facilitated by employing a mesh, or net-work, L, of thread, or other suitable material, covering the funduspf the uterus,

andmade to assist in illustrating the contractile and expulsive force of the uterus, by means of cords-c c, passing through holes in the iliurn, and operated, by pulleys d 11', through shaits and finger-disks c e. Then the various presentations of l the foetus may be studied successfully, with the various manipulations of turning, and application or use of different kinds of instruments.

5 l The bladder G mav be inflated, by means of a tube,

provided with a stop-oock, ihr the purposejof showing its relation to other organs, and the danger of injury to it-in natural or instrumental labor; and by allowing it to collapse, or contract, through escape of the air used for itstinflation, ,showing the importance-of keeping saidorgan well emptied, to obviate such danger. The whole structure is covered with non-elastic or semi-elastic rubber cloth fiend studied with rubber,

sponge, curled hair, or other elastic material, .9, to rep-- resent the, fleshy and muscular tissues of living partu rient'fernalcs, or that portion of the abdomen and limbs necessary for the purpose for which'the manikin is designed; v 7

The artificial foetus K, which may be made of lifesize at birth, is formed, for the most part, of semi-clastic rubber cloth h, stuffed with rubber, sponge, or other elastic material, to represent the natural foetus,- the same being made with a spine, i, of semi-elastic-rnbher, to show the different movements of whichthe foetus is susceptible, and metallic or rubber parts, represent- .ing the other bones and joints of the-foetus, the joints, 1 or certain of them, it, having elastic rubber inserted, to

illustrate the natural extension and flexion of the parts in a living fietus,'wher'eby said artificial fmtus is made- .toassnme its natural position in the uterus, with a ca.-

pacity to straighten, when unrestrained, and delivered therefro'm. w

' The skull of said fintus is made of metallic plates 1, to ieprescnt the bones ofthe natural skull, with-its sutures m, and font-anelles a, such divided portions beingcovcred by elastic rubber, to hold them together,

and to admit of the compres'sibilityof the head, as in the natural frnt'us, said'head being filled with rubber,

sponge, or other-elastic materials This construction admits of' themanipnlation of the faiths, as in natural or instrumentallabor.

A manikin, with artificinlfoetus combined, thus constructed," i s not 'merelyof an anatomical character, but operative in its action, and serves to practically lllllS;

trate the art of midwiferyfeither wither. without the use (if-instruments.

.:The, operation of the manikin' will be facilitated by from the,exteriur of the manikin, by cords and pulleys,

or other suitable mechanical devices, to assist in illusuterus, and so that said jointed portinns extend autotreting the expulsiycaction of said utelus, essentially as described.

3. An artificial fretns, constructed substzmtinlly n.s described, with its joints Tc made capable of extension and flexion, to secure to it its natural position in the matically, when withdrawn therefrom, substantially as specified.

4. An artificial fist-us, with its skull, constructed substantially as described, and made compressible, essentially as and for the purpose or purposes herein set forth.

' B. H. AYLW'ORTH.

Witnesses:

Fnsn. HAYNES, Hess iALMER. 

